Parameter

Results

FEB

DIC

Wave length (nm)

280

280

Linearity range µg/mL

0.4 - 4

0.5 - 5

Slope

6.5171

8.3367

Intercept

−0.0087

−0.0145

Determination coefficient (r²)

0.9999

0.9998

Accuracy (%R)

99.76

100.63

Inter-day precision RSD%

0.336

1.187

Intra-day precision RSD%

0.0651

1.017

LOD µg/mL

0.0159

0.0263

LOQ µg/mL

0.0481

0.0796